Re: Fw: Stair LEDs

[ian.bird@xxxxxxxxxxxxxx]

The chips are completely blank when they arrive from the shop. To be able
to program them through the serial port I need to load a program into them
and set some fuses (flags if you like).

If there is enough interest I will look at getting a setup so I can program
these outside of the boards otherwise I will need a header on each board in
order to attach the programmer. Not a big deal but a pain. The initial
programming of the chip would need on each board the chip, crystal, a
couple of caps and a header as a minimum. Power supply connectors etc.
would be useful but probably not essential. Maybe a half made board would
be possible. leave off all the LED control stuff and connector blocks. This
would also make it quite simple to assemble for anyone handy with a
soldering iron ;-)

We'll see

Ian




---------+--------------------------------->
Jim Noble
<yahoo-groups@black-me
tallic.com>
Sent by:
ukha_d@xxxxxxx


17/03/2006 11:11
Please respond to
ukha_d

---------+--------------------------------->
>-----------------------------------------------------------------------------------------------------------------------------

To:       ukha_d@xxxxxxx
cc:       (bcc: Ian Bird/CV/Novartis)
Subject:  Re: Fw: [ukha_d] Stair LEDs
>-----------------------------------------------------------------------------------------------------------------------------




ian.bird@xxxxxxx wrote:
>> So a total BOM of around 20-30 quid? (excluding LEDs and sensors)
>>
> I would think so yes.
> For a kit the programming of the micro may be a challenge. I don't
have a
> zif socket for this size and there won't be enough room for a DIL one
so
> some of the components may have to be pre-assembled just to make it
work.
I
> will look into a zif but they are normally very expensive. I will also
buy
> and install a boot loader so the firmware can be updated over the
serial
> port by anyone with a computer and serial port. Makes life a lot
easier.
>

No chance of [1st time] programming in situ via the serial port?

Jim